Answer:
(a) MY(s) = e^λ(e^t-1/t - 1)
(b) E[Y] = λ/2
(c) E[Y] = λ/2
Step-by-step explanation:
See the attached file for explanation
They own a total of 120 CDs. Ella's CD is 40 while Paolo's CD is 80.
Given:
Ella's ratio of rock music to total CDs = 25/40
Paolo's ratio of rock music to total CDs = 50/x
25/40 = 50/x
25x = 40*50
25x = 2000
25x/25 = 2000/25
x = 80
Total CDs
Ella = 40
Paolo = 80
Total CDs = 120
B. If you Have the child's ticket being less than the adult's ticket, you can only add to get your answer.
Answer:
Percent decrease = 10.43% (Approx)
Step-by-step explanation:
Given:
Old price = $1.15 million
New price = $1.03 million
Find:
Percent decrease
Computation:
Percent decrease = [(Old price - new price)/Old price]100
Percent decrease = [($1.15 million - $1.03 million)/$1.15 million]100
Percent decrease = [($0.12 million)/$1.15 million]100
Percent decrease = 10.43% (Approx)
